Bottle-washer brush



H. GRASS.

'BOULE WASHER BRUSH. APPLICATION man Aums. 191s.

1,306,478. PatentedJunelo, 1919.

INVENTOR HARRY GRASS HARRY GRASS, or DETROIT, MICHIGAN.

BOTTLE-WASHER BRUSH.

specification of Letters raient, Patented June 10, 1919.

Applicationiled'August'28, 1918. Serial No. 251,723.

T0 all whom t mag/concern: f f' Be it known that I, HARRY GRASS,Aacit--f-V zen of the United States of America, residing at Detroit, inthe county of Wayne and State of Michigan, have invented certain new anduseful Improvements in Bottle-` l/Vasher Brushes, of which the followingis a specification, reference being had therein to the accompanyingdrawings.

Machines employed for washing bottles, particularly beverage bottles,have reciprocable tubular spindles with the ends thereof provided withbrushes and when a spindle is reciprocated the brush on the end thereofis adapted to enter the bottle and thoroughly `clean the inner wallsthereof as water or washing compound is injected into the bottle. Somebrushes are in the form of ilexible pieces of rubber, others of bristlesloosely or fixedly held relative to the spindle, and my invention hasspecial reference to bristle brushes that are self adjusting relative toa 'bottle and have a limited movement relative to a machine spindle.

The object of my invention is to provide a simple, durable andinexpensive spindle brush that may safely enter a bottle and be readilywithdrawn therefrom, the brush being of such design as to thoroughlycleanse the inner walls yof the bottle during the injection of watertherein.'

The above and other objects are attained by a mechanical constructionthat will be hereinafter specifically described and then claimed, andreference will now be had to the drawing, wherein- Figure 1 is a plan ofa bottle washer brush in accordance with my invention;

Fig. 2 is a longitudinal sectional view of a portion of the brushspindle showing brush arms;

Fig. 8 is a side elevation of the same; and

Fig. 4L is a developed view of one of the brush arms.

In the drawings, l denotes a conventional form of tubular machinespindle having a detachable head 2 provided with an outlet port 3 forthe ejection of water supplied to the head 2 by the spindle 1.

The outer end of the head 2 is bifurcated or slotted, as at 4: andprovided with a transverse pivot pin 5 for parallel brush arms ormembers 6. Each brush arm or member is made frein a fiat ahlen@ pisse ofinstal that 'is bent on itself at a longitudinal central imaginaryline?, so as to provide vparallel opposed side wings 8. It is betweenthe side wings of the brush arm that a row of bristles 9 have the innerends thereof clamped so that the outer ends will present a straightedge, and in the outer end of the arm arey bunched the inner ends ofbristles 10, said bristles being disposed so that the outer ends thereofwill be in an arc from the straight edge of the bristles 9. The bristles10 are furthermore disposed so that when the brush arms 6 are broughtinto parallelism, the bristles l0 will be hunched in the longitudinalaxis of the spindle l. The bristles 9 and 10 may be held by compressingthe Vopposed side wings 8 of each arm and in 'addition to such holdingmeans the outer ends of the arms may be provided with rivets 11positively holding the side wings in close proximity to each other.

The inner ends of the arms 6, which are pivotally held on the pin 5,abut ang'ularly disposed shoulders 12 formed by providing the outer endof the head 2 with kerfs 13, said kerfs providing clearance for theinner ends of the arms 6 when said arms are closed or in parallelism,while the shoulders 12 limit the opening movement of the arms 6 andmaintain the same at an obtuse angle relative to each other, that is,with the brushes spread apart as shown in Fig. 1. The kerfs 18 arenecessarily disposed the reverse of each other, as shown in Figs. 2 and3 and the outlet port 3 is located at one side of one of the kerfs.

I attach considerable importance to the simplicity of constructionentering into each brush arm, and when the spindle is revolved within abottle, the bristles 9 and 10 will thoroughly cleanse the interiorsurfaces of the bottle.

One embodiment of my invention has been illustrated but it is to beunderstood that the structural elements are susceptible to suchvariations and modifications as fall within the scope of the appendedclaim.

What I claim is A bottle washing brush comprising a spindle head havingcommunicating kerfs and a water outlet port with said kerfs formingreversely disposed shoulders, sheet metal arms having compressed inner'ends tafereel? piraten? mounted ia the ker-fs er said head to engage thekeif shoulders and thereof in retaining said bristles in said each armproviding opposed parallel Wings, arms. 10 brush 'bristles havingtheinner ends thereof In testimony whereof I aiX my signature betweenthe Wings of each arm and some of in the presence of tWo Witnesses.

said bristles disposed in a row and others HARRY GRASS. hunched at theouter end of the arm, and Witnesses:

means in the outer ends of said arms eop- KARL H. BUTLER,

eratng With the compressed inner ends. ANNA M. Donn.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. G.

